/*!
* jQuery UI 1.8.7
*
* Copyright 2010, AUTHORS.txt (http://jqueryui.com/about)
* Dual licensed under the MIT or GPL Version 2 licenses.
* http://jquery.org/license
*
* http://docs.jquery.com/UI
*/
(function ($, undefined) {
    // prevent duplicate loading
    // this is only a problem because we proxy existing functions
    // and we don't want to double proxy them
    $.ui = $.ui || {};
    if ($.ui.version) {
        return;
    }

    $.extend($.ui, {
        version: "1.8.7",

        keyCode: {
            ALT: 18,
            BACKSPACE: 8,
            CAPS_LOCK: 20,
            COMMA: 188,
            COMMAND: 91,
            COMMAND_LEFT: 91, // COMMAND
            COMMAND_RIGHT: 93,
            CONTROL: 17,
            DELETE: 46,
            DOWN: 40,
            END: 35,
            ENTER: 13,
            ESCAPE: 27,
            HOME: 36,
            INSERT: 45,
            LEFT: 37,
            MENU: 93, // COMMAND_RIGHT
            NUMPAD_ADD: 107,
            NUMPAD_DECIMAL: 110,
            NUMPAD_DIVIDE: 111,
            NUMPAD_ENTER: 108,
            NUMPAD_MULTIPLY: 106,
            NUMPAD_SUBTRACT: 109,
            PAGE_DOWN: 34,
            PAGE_UP: 33,
            PERIOD: 190,
            RIGHT: 39,
            SHIFT: 16,
            SPACE: 32,
            TAB: 9,
            UP: 38,
            WINDOWS: 91 // COMMAND
        }
    });

    // plugins
    $.fn.extend({
        _focus: $.fn.focus,
        focus: function (delay, fn) {
            return typeof delay === "number" ?
			this.each(function () {
			    var elem = this;
			    setTimeout(function () {
			        $(elem).focus();
			        if (fn) {
			            fn.call(elem);
			        }
			    }, delay);
			}) :
			this._focus.apply(this, arguments);
        },

        scrollParent: function () {
            var scrollParent;
            if (($.browser.msie && (/(static|relative)/).test(this.css('position'))) || (/absolute/).test(this.css('position'))) {
                scrollParent = this.parents().filter(function () {
                    return (/(relative|absolute|fixed)/).test($.curCSS(this, 'position', 1)) && (/(auto|scroll)/).test($.curCSS(this, 'overflow', 1) + $.curCSS(this, 'overflow-y', 1) + $.curCSS(this, 'overflow-x', 1));
                }).eq(0);
            } else {
                scrollParent = this.parents().filter(function () {
                    return (/(auto|scroll)/).test($.curCSS(this, 'overflow', 1) + $.curCSS(this, 'overflow-y', 1) + $.curCSS(this, 'overflow-x', 1));
                }).eq(0);
            }

            return (/fixed/).test(this.css('position')) || !scrollParent.length ? $(document) : scrollParent;
        },

        zIndex: function (zIndex) {
            if (zIndex !== undefined) {
                return this.css("zIndex", zIndex);
            }

            if (this.length) {
                var elem = $(this[0]), position, value;
                while (elem.length && elem[0] !== document) {
                    // Ignore z-index if position is set to a value where z-index is ignored by the browser
                    // This makes behavior of this function consistent across browsers
                    // WebKit always returns auto if the element is positioned
                    position = elem.css("position");
                    if (position === "absolute" || position === "relative" || position === "fixed") {
                        // IE returns 0 when zIndex is not specified
                        // other browsers return a string
                        // we ignore the case of nested elements with an explicit value of 0
                        // <div style="z-index: -10;"><div style="z-index: 0;"></div></div>
                        value = parseInt(elem.css("zIndex"), 10);
                        if (!isNaN(value) && value !== 0) {
                            return value;
                        }
                    }
                    elem = elem.parent();
                }
            }

            return 0;
        },

        disableSelection: function () {
            return this.bind(($.support.selectstart ? "selectstart" : "mousedown") +
			".ui-disableSelection", function (event) {
			    event.preventDefault();
			});
        },

        enableSelection: function () {
            return this.unbind(".ui-disableSelection");
        }
    });

    $.each(["Width", "Height"], function (i, name) {
        var side = name === "Width" ? ["Left", "Right"] : ["Top", "Bottom"],
		type = name.toLowerCase(),
		orig = {
		    innerWidth: $.fn.innerWidth,
		    innerHeight: $.fn.innerHeight,
		    outerWidth: $.fn.outerWidth,
		    outerHeight: $.fn.outerHeight
		};

        function reduce(elem, size, border, margin) {
            $.each(side, function () {
                size -= parseFloat($.curCSS(elem, "padding" + this, true)) || 0;
                if (border) {
                    size -= parseFloat($.curCSS(elem, "border" + this + "Width", true)) || 0;
                }
                if (margin) {
                    size -= parseFloat($.curCSS(elem, "margin" + this, true)) || 0;
                }
            });
            return size;
        }

        $.fn["inner" + name] = function (size) {
            if (size === undefined) {
                return orig["inner" + name].call(this);
            }

            return this.each(function () {
                $(this).css(type, reduce(this, size) + "px");
            });
        };

        $.fn["outer" + name] = function (size, margin) {
            if (typeof size !== "number") {
                return orig["outer" + name].call(this, size);
            }

            return this.each(function () {
                $(this).css(type, reduce(this, size, true, margin) + "px");
            });
        };
    });

    // selectors
    function visible(element) {
        return !$(element).parents().andSelf().filter(function () {
            return $.curCSS(this, "visibility") === "hidden" ||
			$.expr.filters.hidden(this);
        }).length;
    }

    $.extend($.expr[":"], {
        data: function (elem, i, match) {
            return !!$.data(elem, match[3]);
        },

        focusable: function (element) {
            var nodeName = element.nodeName.toLowerCase(),
			tabIndex = $.attr(element, "tabindex");
            if ("area" === nodeName) {
                var map = element.parentNode,
				mapName = map.name,
				img;
                if (!element.href || !mapName || map.nodeName.toLowerCase() !== "map") {
                    return false;
                }
                img = $("img[usemap=#" + mapName + "]")[0];
                return !!img && visible(img);
            }
            return (/input|select|textarea|button|object/.test(nodeName)
			? !element.disabled
			: "a" == nodeName
				? element.href || !isNaN(tabIndex)
				: !isNaN(tabIndex))
            // the element and all of its ancestors must be visible
			&& visible(element);
        },

        tabbable: function (element) {
            var tabIndex = $.attr(element, "tabindex");
            return (isNaN(tabIndex) || tabIndex >= 0) && $(element).is(":focusable");
        }
    });

    // support
    $(function () {
        var body = document.body,
		div = body.appendChild(div = document.createElement("div"));

        $.extend(div.style, {
            minHeight: "100px",
            height: "auto",
            padding: 0,
            borderWidth: 0
        });

        $.support.minHeight = div.offsetHeight === 100;
        $.support.selectstart = "onselectstart" in div;

        // set display to none to avoid a layout bug in IE
        // http://dev.jquery.com/ticket/4014
        body.removeChild(div).style.display = "none";
    });

    // deprecated
    $.extend($.ui, {
        // $.ui.plugin is deprecated.  Use the proxy pattern instead.
        plugin: {
            add: function (module, option, set) {
                var proto = $.ui[module].prototype;
                for (var i in set) {
                    proto.plugins[i] = proto.plugins[i] || [];
                    proto.plugins[i].push([option, set[i]]);
                }
            },
            call: function (instance, name, args) {
                var set = instance.plugins[name];
                if (!set || !instance.element[0].parentNode) {
                    return;
                }

                for (var i = 0; i < set.length; i++) {
                    if (instance.options[set[i][0]]) {
                        set[i][1].apply(instance.element, args);
                    }
                }
            }
        },

        // will be deprecated when we switch to jQuery 1.4 - use jQuery.contains()
        contains: function (a, b) {
            return document.compareDocumentPosition ?
			a.compareDocumentPosition(b) & 16 :
			a !== b && a.contains(b);
        },

        // only used by resizable
        hasScroll: function (el, a) {
            //If overflow is hidden, the element might have extra content, but the user wants to hide it
            if ($(el).css("overflow") === "hidden") {
                return false;
            }

            var scroll = (a && a === "left") ? "scrollLeft" : "scrollTop",
			has = false;

            if (el[scroll] > 0) {
                return true;
            }

            // TODO: determine which cases actually cause this to happen
            // if the element doesn't have the scroll set, see if it's possible to
            // set the scroll
            el[scroll] = 1;
            has = (el[scroll] > 0);
            el[scroll] = 0;
            return has;
        },

        // these are odd functions, fix the API or move into individual plugins
        isOverAxis: function (x, reference, size) {
            //Determines when x coordinate is over "b" element axis
            return (x > reference) && (x < (reference + size));
        },
        isOver: function (y, x, top, left, height, width) {
            //Determines when x, y coordinates is over "b" element
            return $.ui.isOverAxis(y, top, height) && $.ui.isOverAxis(x, left, width);
        }
    });
})(jQuery);